Introductory Physics Homework Help Forum

Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Homework Help Guidelines for Students and Helpers
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Hey! I posted in homework help but now it's gone!
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Homework Help: Introductory Physics Formulary
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Calculating gravitational potential due to a uniform ring tilted at an angle
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4
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70
Normalisation constants with ladder operators
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10
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88
Spring constant matrix and normal modes (4 springs and 3 masses)
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2
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14
Calculating the Force and Torque on a current loop
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2
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15
Thermodynamic process and entropy -- Two chambers with different gasses with interconnecting membranes
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3
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64
Path/time function of a freesbie (the one at the amusement parks)
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2
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30
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141
Ratio of acceleration of two solid cylinders released on two inclined planes
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9
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53
Angular momentum: Grooved cone with a mass sliding down the groove
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4
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52
Work & energy VS conservation of angular momentum
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9
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68
Tension in a whirling rope
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8
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94
Choosing proper coordinates in a complex 2 pulley system
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6
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65
Estimate the partition function by analyzing a graphic
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1
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24
Position and Momentum probability for +x direction
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14
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88
Calculation of the motion of two charged particles interacting with each other
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9
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61
Trajectory of a mass element in a string overhanging a pulley
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13
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132
Need Help With These Resistor Network Problems Please
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24
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117
Rotating rod and forces
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1
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36
Direction of acceleration of a projectile with drag force
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6
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67
Two blocks on a third block which is split into two ramps
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8
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46
Motion without gravity
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3
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48
Mechanics: A bowling ball is thrown and rolls with slipping
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8
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102
Easy interference problem regarding Newton's rings
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4
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50
Calculating the Particle distribution in an open cylinder due to varying the vertical acceleration
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1
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56
Thermodynamics Problem: Heat Engine Between Two Blocks
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12
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284
A Hamiltonian identity
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8
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162
Correct statement about error and uncertainty
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2
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60
Simple harmonic motion homework
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7
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135
Basic question about coplanar forces
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2
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79
Falling Rain Drop (Variable Mass)
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16
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960
Static Equilibrium Problem
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3
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89
Gear Rotation puzzle is confusing! 50:10 GR but 6 rotations
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20
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477
Sketch a qualitatively accurate graph of the entropy of a substance
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1
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55
Triangular trolley
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15
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213
Gases and pressure
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12
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113
Doubt about the 2nd position vector direction in a particle's movement
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4
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70
Force Pulley question
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5
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60
Entropy in solid bodies
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1
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51
Seeking a simple logical argument to an interesting statement (spring-mass motion)
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4
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98
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898
Question on Spikes
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7
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64
Questions on Wheels
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7
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101
What is opposing resistance?
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5
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77
A skier goes down a slope -- Ignoring friction, calculate the acceleration
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6
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76
Doppler radar measurement by an aircraft
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4
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79
Moment of inertia, center of mass and vincular reaction of a rod
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16
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185
Magnetic field needed to apply to a proton for it to experience a zero net force
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4
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96
Total energy of the normal mode on a string
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3
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84
Pulling a tablecloth from under a glass
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12
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128
A bit confused about significant figures
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16
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267
I want to learn about basic and advanced angular momentum
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2
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65
Hydrostatic pressure of liquid in a cart on an inclined ramp
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13
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161
Variable friction on an inclined plane and maximum velocity
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2
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33
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259
Springs and small oscillations
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19
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165
To find induced charges on the edges of a right pyramid
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4
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90
Angular acceleration calculation
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3
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61
What happens to a balloon in reality when you take it down into the deep ocean?
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1
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92
Multiple-Choice Questions on the Behaviour of Waves and Light 😁
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3
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85
Time taken to reach the centre
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5
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95
Gyroscopic torque calculator
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1
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54
Moment of inertia of two coaxial disks
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8
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112
Momentum Problem -- Bullet fired into a block of wood
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2
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103
Normal force acting on a block on an accelerating wedge
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12
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126
Questions about the different type of lenses and mirrors and their properties
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3
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87
Mechanics Homework Help -- Trying to understand these equations for a particle on a string in circular motion
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3
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83
Problem with a car and a truck
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2
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90
The center of mass of a semicircular arc of non-negligible width
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3
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106
Question about charged capacitors and inserting a dielectric into one
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3
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104
Contradiction with forces in this problem with a ball rolling in a loop-the-loop ramp
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7
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124
Tilting the plates of a parallel plate capacitor (and other changes)
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17
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160
Air Density Problem -- Ratio of the air density at 1km altitude versus the Earth's surface
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19
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245
A block on an accelerating wedge
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4
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95
Finding the excess electrons per lead atom
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2
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92
Waves on a metal rod
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3
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119
Degrees of freedom of a water molecule
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8
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141
Question about Waves on a String
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2
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140
What exactly is pulling the man up/down in rocket?
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5
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131
Length contraction and Time dilation for LIGHT?
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8
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229
Comet Speed Calculation
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6
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109
Calculate the New Velocity and the Velocity of a Pendulum Mass
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1
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85
Fundamental frequencies in a violin string.
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3
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83
Clausius clapeyron and heat capacity
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1
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113
Rigid body sliding without overturning
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17
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240
Point-like charge between grounded plates: Induced charges
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9
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160
Pipe Friction, Reynolds number & Bernoilli's Equation
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7
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183
Change in a rocket's kinetic energy
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5
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1K
Angle of deviation from a magnetic field
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5
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125
Thermodynamics: phase change and latent heat problem
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12
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170
Trivial : Use of "negative sign" when calculating centroid
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12
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136
(Conceptual Problem) Whether the ball can pass through the basket
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2
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26
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312
Conceptual Problem - Static Equilibrium
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20
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166
What is a "Torsional Constant"?
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11
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139
Time dilation derivation
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4
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106
Need help with an optics question -- Coupling a surface mount LED into a cylindrical optical guide
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3
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126
Mean Free Path of Air Molecules
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5
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106
Man standing on a Railroad car rounding a curve -- How much weight is on each of his feet?
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12
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125
Electric field in a spherical shell
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2
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93
Energy conservation of metallic balls
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3
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131
Equations for the velocity of progressive travelling waves
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3
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122
System subject to a driving force
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13
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199
Coupled system with 2 blocks, 3 springs, a driving force and a resistive force
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4
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128
Energy consumed for same work with different power?
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20
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172
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Intro Physics Homework Help

Get introductory physics homework help, step by step from mentors. We do not give answers but guide you to it with your effort.

This is for algebra and calculus based general physics homework. Usually this is high school and undergraduate level problems.

Please use the template when asking for help, include all information and provide a reasonable attempt at a solution.

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